Home / 1,308,347.10-1,962,131.85-509,168.70

Finding the Fourth Proportional to 1,308,347.10, 1,962,131.85 and 509,168.70

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Solution

The fourth proportional to 1,308,347.10, 1,962,131.85 and 509,168.70 is: 763,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,347.10 : 1,962,131.85 = 509,168.70 : x
  2. Step 2: Convert to fraction form
    1,308,347.10/1,962,131.85 = 509,168.70/x
  3. Step 3: Cross multiply
    1,308,347.10x = 1,962,131.85 × 509,168.70
  4. Step 4: Simplify right side
    1,308,347.10x = 999,056,123,293.10
  5. Step 5: Solve for x
    x = 999,056,123,293.10/1,308,347.10
  6. Step 6: Final answer
    x = 763,601.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.